<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
   <div id="app">
         <a v-bind:href="msg">百度</a>
   </div>

         <script src="node_modules/vue/dist/vue.js"></script>
         <script>
             new Vue({
                 el:"#app",
                 data:{
                     msg:"http://www.baidu.com"
                 }
             });
         </script>
</body>
</html>